Starter drive



Dec. 1,- 1936 R J, QLHGLEY 2,062,726

STARTER DR IVE Filed July 11, 1956 2 Sheets-Sheet 1 Z Inventor 7 flf yaga y i By QMw/EM Afiorneqs R. J. QUIGLEY Dec. 1, 1936.

STARTER DR IVE 2 Sheets-Sheet 2 Filed July 11, 1936 Inventor Afiornci s Patented Dec. 1, 1936 UNITED STATES STARTER DRIVE Raymond J. Quigley, Ann Arbor, Mich. Application July 11, 1936,. Serial No. '90,243

6 Claims.

The present invention appertains to new and useful improvements in starter drives.

The principal object of the present invention is to provide a simple and positive acting drive for engine starters.

Another important object of the invention is to provide a starter drive which is of .low cost to manufacture and wherein the parts are capable of quick assembly as well as disassembly for the purpose of repair or replacement of defected parts.

Other important objects and advantages of the invention will become apparent to the reader of the following specification.

In the drawings:--- Figure 1 represents a side elevational view of the drive.

Figure 2 is a longitudinal sectional view through the drive.

Figure 3 is a section on-the line 3-3 of Figure 2.

Figure 4 is an end elevational view of the drive.

Figure 5 is a side elevational view of the pinion assembly with a portion thereof broken away.

Figure 6 is a side elevational view of the splined sleeve with a portion broken away.

Figure '7 is a longitudinal sectional view through the barrel.

Figure 8 is a sectional view through the two sections of the split abutment wedge.

Referring to the drawings wherein like numerals designate like parts, it can be seen that numeral 5 denotes the starter motor shaft on which the elongated barrel 6 is located. One end of this barrel 6 is provided with the threaded radial bore 1 for the reception of the set screw 8 .3 which is provided with a reduced extension adapted to be driven into a recess in the shaft 5. Numeral 9 is a lock screw forv the set screw 8. Thus the barrel 6 is positively secured to the shaft 5. Removable pintles I0H are disposed in radial directions outwardly through the wall of the barrel 6 so as to project beyond the periphery thereof and engage into the spiral grooveways l2-I3 of the splined sleeve M. This sleeve 14 is slidable on the enlarged end portion A of the barrel 6 and 45 on the internal wall l5 of the pinion assembly generally referred to by numeral l6.

One end of the sleeve I4 is provided with splined teeth I! for engagement with the spiral grooveways l8 on the inside of the outer wall I9 of the 50 pinion assembly IS.

The pinion gear assembly l6 as shown consists of the pinion 20 having the aforementioned spaced inner and outer walls l5-l9 between which is located the ring 2| of cushion rubber. A gasket 22 of metal is interposed between this ring 2| projecting the sleeve M to the leftof Figure 2 and'the spline toothed end of the sleeve H. A

lock ring 23 is provided at the inside of the wall I9 toprevent displacement of the toothed end of the sleeve M from the pinion assembly l6.

When the sleeve I4 is in the dotted line position shown in Figure 2, the spring-pressed pawl 24 is engaginginto the recess 25at the inside of the sleeve I 4 so as to retain this sleeve as well as the pinion assembly in retracted position away from the flywheel (not shown).

Thus it can be seen, that when the shaft 5 starts rapidly into operation, rotation of the barrel G with the shaft 5 willcause the pintles llJ to ride in the grooveways I2-l3 of the sleeve l4,

and shoving the pinion assembly l-6- into mesh with the flywheel gear (not shown).

The cushion rubber ring 2| takes up some of the shock of this sudden action.

The pinion assembly stops against the abutment assembly generally referred to by numeral 26, which consists of a collar 21 having an internal annular grooveway 28. Numeral 29 represents a pair of semi-circular ring sections of transverse beveled construction each provided with ribs 30 at its inner side for engagement with circumferential grooveways on the adjacent end of the barrel 6. To assemble this abutment, the hollow end portion of the collar 21 is slipped over the sections 29 with the ribs thereof engaging into the grooveways of the barrel 6. When the collar 21 has been engaged sufficiently over the sections 29 so that the spring-pressed ball 3| engages into the grooveway 28, the abutment assembly will be intact and fixed on the barrel 6.

While the foregoing specification sets forth the invention in specific terms, it is to be understood that numerous changes in the shape, size and materials may be resorted to without departing from the spirit and scope of the invention as claimed hereinafter.

Having described the invention what is claimed as new is:-

l. A starter drive comprising a drive shaft, a barrel on the drive shaft and secured thereto, a pinion assembly consisting of a pinion and inner and outer annular walls projecting therefrom longitudinally of the barrel, a spline sleeve on the barrel, spiral grooves on the inner side of the outer wall, spline teeth on one end of the sleeve engageable with the said spiral groove on the outer wall, cushioning means between the Walls and against which the toothed end of the sleeve impinges, and a splined spiral connection between the barrel and the said sleeve.

2. A starter drive comprising a drive shaft, a barrel on the drive shaft and secured thereto, a pinion assembly consisting of a pinion and inner and outer annular walls projecting therefrom longitudinally of the barrel, a spline sleeve on the barrel, spiral grooves on the inner side of the outer wall, spline teeth on one end of the sleeve engageable with the said spiral groove on the outer wall, cushioning means between the Walls and against which the toothed end of the sleeve impinges, and a splined spiral connection between the barrel and the said sleeve, said cushion member between the walls consisting of an annulus of cushion rubber and a metallic gasket between the sleeve and the said annulus.

3. A starter drive comprising a drive shaft, a barrel on the drive shaft and secured thereto, a pinion assembly consisting of a pinion and inner and outer annular walls projecting therefrom longitudinally of the barrel, a spline sleeve on the barrel, spiral grooves on the inner side of the outer wall, spline teeth on one end of the sleeve engageable with the said spiral groove on the outer wall, cushioning means between the walls and against which the toothed end of the sleeve impinges, and a splined spiral connection between the barrel and the said sleeve. and a lock ring on the inside of the outer wall for preventing displacement of the toothed end of the sleeve.

4. A starter drive comprising a drive shaft, a barrel on the drive shaft and secured thereto, a pinion assembly consisting of a pinion and inner and outer annular walls protecting therefrom longitudinally of the barrel, a spline sleeve on the barrel, spiral grooves on the inner side of the outer wall, spline teeth on one end of the sleeve engageable with the said spiral groove on the outer wall, cushioning means between the walls and against which the toothed end 'of the sleeve impinges, and a splined spiral connection between the barrel and the said sleeve, said spiral splined connection between the sleeve and the barrel consisting of spiral grooveways on the inner side of the sleeve and removable radially disposed pins on the barrel engaging into the said grooveways of the sleeve.

5. A starter drive comprising a drive shaft, a barrel on the drive shaft and secured thereto, a pinion assembly consisting of a pinion and inner and outer annular walls projecting therefrom longitudinally of the barrel, a spline sleeve on the barrel, spiral grooves on the inner side of the outer wall, spline teeth on one end of the sleeve engageable with the said spiral grooves on the outer wall, cushioning means between the walls and against which the toothed end of the sleeve impinges, and a splined spiral connection between the barrel and the said sleeve, and a removable abutment at one end of the barrel against which the said pinion can abut.

6. A starter drive comprising a drive shaft, a barrel on the drive shaft and secured thereto, a pinion assembly consisting of a pinion and inner and outer annular walls projecting therefrom longitudinally of the barrel, a spline sleeve on the barrel, spiral grooves on the inner side of the outer wall, spline teeth on one end of the sleeve engageable with the said spiral groove on the outer wall, cushioning means between the 

